20162442520 has 64 divisors (see below), whose sum is σ = 49518915840. Its totient is φ = 7327459200.

The previous prime is 20162442511. The next prime is 20162442541. The reversal of 20162442520 is 2524426102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784189 + ... + 809491.

It is an arithmetic number, because the mean of its divisors is an integer number (773733060).

Almost surely, 2^20162442520 is an apocalyptic number.

20162442520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20162442520 is an abundant number, since it is smaller than the sum of its proper divisors (29356473320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20162442520 is a wasteful number, since it uses less digits than its factorization.

20162442520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27136 (or 27132 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 20162442520 its reverse (2524426102), we get a palindrome (22686868622).

The spelling of 20162442520 in words is "twenty billion, one hundred sixty-two million, four hundred forty-two thousand, five hundred twenty".